ApsaraDB RDS:Competitive advantages of ApsaraDB RDS over self-managed databases

• Scalable resources with no upfront hardware investment.
• AliSQL — Alibaba Cloud's independent MySQL branch — provides features comparable to MySQL Enterprise Edition at no extra cost. For more information, see Overview of AliSQL features.
• Free backup storage up to twice the purchased storage capacity. For more information, see Backup storage pricing for an ApsaraDB RDS for MySQL instance.
• Internet traffic included at no charge.
• Custom domain names supported at no charge.
• Minor version updates released by Alibaba Cloud, tracking the latest MySQL releases.

• Scalable resources, but open source MySQL without optimization.
• Backup storage and Internet traffic billed separately.

• High upfront hardware cost.
• Open source MySQL without optimization.
• Independent backup infrastructure required.
• Internet traffic and domain names billed at high rates.

• RDS Basic Edition: failover completes in approximately 15 minutes.
• RDS High-availability Edition / RDS Cluster Edition: failover completes within 30 seconds using Alibaba Cloud's proprietary high-availability architecture.
• Read-only instances available for load balancing. For more information, see Overview of read-only ApsaraDB RDS for MySQL instances.
• Read/write splitting distributes read and write traffic via a dedicated endpoint. For more information, see Enable the proxy terminal feature for an ApsaraDB RDS for MySQL instance.
• Analytic RDS instances for data analysis are in development.

• Basic edition failover takes approximately 30 minutes.
• High-availability architecture requires additional software or hardware.
• Load balancing requires additional software or hardware.

• Standalone by default; server failure can mean hours to weeks of downtime.
• High-availability and load-balancing architectures require additional software or hardware.

• Automated data replication between primary and secondary instances, plus automated data and log backups.
• RDS Enterprise Edition delivers a recovery point objective (RPO) of 0 and a recovery time objective (RTO) of approximately 1 minute when used with MySQL 5.7 or MySQL 8.0.

• RDS Enterprise Edition for MySQL 5.7 and MySQL 8.0 (three-node architecture) achieves a Recovery Point Objective (RPO) of 0, which means no data loss. The Recovery Time Objective (RTO) is typically around 1 minute.

• High availability requires an architecture that you build and maintain.
• Achieving an RPO of 0 requires purchasing independent R&D services.

• Data reliability depends on individual disk integrity.
• Achieving an RPO of 0 requires purchasing independent R&D services.

• Automated backup and restore supports point-in-time recovery (PITR), database-level restore, and streaming backups with minimal performance impact. For more information, see Enable automatic backups for an ApsaraDB RDS for MySQL instance.
• Built-in monitoring and alerting covers all instance and database metrics at a few-seconds granularity. Alerts are delivered by text message, email, or DingTalk — with a free text message quota based on your purchase. For more information, see Configure an alert rule for an ApsaraDB RDS for MySQL instance.
• Minor engine version updates with a few clicks. For more information, see Update the minor engine version of an ApsaraDB RDS for MySQL instance.

• Streaming backups and PITR must be purchased or configured separately.
• Monitoring requires a separate system configured in CloudMonitor.
• Version updates require significant manual effort.

• Streaming backups and PITR must be purchased or configured separately.
• An independent monitoring system must be purchased and configured.
• Geo-disaster recovery is difficult to set up and expensive.
• Version updates require significant manual effort.

• Instances with Premium Local SSDs deliver high I/O performance.
• Instances with enhanced SSDs (ESSDs) outperform standard SSD-based instances.
• Read-only instances scale read throughput independently from the primary instance.
• Database Autonomy Service (DAS) provides advanced query optimization and diagnostics. For more information, see Overview of DAS.
• SQL Explorer covers most monitoring and performance optimization needs. For more information, see Use the SQL Explorer feature on an ApsaraDB RDS for MySQL instance.

• Local disks reduce data reliability; cloud disks require manual architecture planning.
• Cluster deployments are complex and require costly DBA expertise.

• Third-party server hardware refreshes lag behind cloud infrastructure improvements.
• Compute-storage separation requires significant capital investment in advanced storage media.
• Cluster deployments require costly DBA expertise and consultancy.

• IP address whitelists, security groups, and VPC network isolation for network-level access control.
• Link encryption and disk encryption protect data in transit and at rest. Disk encryption supports Bring Your Own Keys (BYOKs) across storage media.
• SQL Explorer provides SQL statement auditing.

• IP address whitelists, security groups, and VPCs available, but link encryption and disk encryption must be configured separately. BYOK rotation is complex and costly.
• SQL logs must be stored separately, making auditing difficult.

• IP address whitelists and VPCs available, but require high consultancy costs to configure.
• Link encryption and disk encryption must be configured separately. BYOK rotation is complex and costly.
• SQL logs must be stored separately, making auditing difficult.

• Scalable resources with no upfront hardware investment.
• AliPG — Alibaba Cloud's PostgreSQL branch — is compatible with open source PostgreSQL and includes proprietary features at no extra cost. For more information, see AliPG benefits.
• Free backup storage up to twice the purchased storage capacity. For more information, see Backup storage pricing for an ApsaraDB RDS for PostgreSQL instance.
• Internet traffic included at no charge.
• Custom domain names supported at no charge.
• Minor version updates released by Alibaba Cloud, tracking the latest PostgreSQL releases.

• Scalable resources, but open source PostgreSQL without optimization.
• Backup storage and Internet traffic billed separately.

• High upfront hardware cost.
• Open source PostgreSQL without optimization.
• Independent backup infrastructure required.
• Internet traffic and domain names billed at high rates.

• RDS Basic Edition: failover completes in approximately 15 minutes.
• RDS High-availability Edition: failover completes within 30 seconds using Alibaba Cloud's proprietary high-availability architecture.
• Read-only instances available for load balancing. For more information, see Overview of read-only ApsaraDB RDS for PostgreSQL instances.

• Basic edition failover takes approximately 30 minutes.
• High-availability and load-balancing architectures require additional software or hardware.

• Standalone by default; server failure can mean hours to weeks of downtime.
• High-availability and load-balancing architectures require additional software or hardware.

• Automated data replication between primary and secondary instances, plus automated data and log backups.
• RPO customization lets you configure an RPO of 0.

• High availability requires an architecture that you build and maintain.
• Achieving an RPO of 0 requires purchasing independent R&D services.

• Data reliability depends on individual disk integrity.
• Achieving an RPO of 0 requires purchasing independent R&D services.

• Automated backup and restore supports PITR, database-level restore, and streaming backups with minimal performance impact. For more information, see Enable automatic backups for an ApsaraDB RDS for PostgreSQL instance.
• Built-in monitoring and alerting covers all instance and database metrics at a few-seconds granularity. Alerts are delivered by text message, email, or DingTalk — with a free text message quota based on your purchase. For more information, see Configure an alert rule for an ApsaraDB RDS for PostgreSQL instance.

• Streaming backups and PITR must be purchased or configured separately.
• Monitoring requires a separate system configured in CloudMonitor.

• Streaming backups and PITR must be purchased or configured separately.
• An independent monitoring system must be purchased and configured.

• Instances with ESSDs outperform standard SSD-based instances.
• Read-only instances scale read throughput independently.
• DAS provides advanced query optimization and diagnostics. For more information, see Overview of DAS.
• SQL Audit covers most database monitoring and performance optimization needs. For more information, see Use the SQL Audit feature on an ApsaraDB RDS for PostgreSQL instance.

• Local disks reduce data reliability; cloud disks require manual architecture planning.
• Experienced database administrators (DBAs) must be recruited.

• Third-party server hardware refreshes lag behind cloud infrastructure improvements.
• Compute-storage separation requires significant capital investment in advanced storage media.
• Experienced DBAs must be recruited.

Security

• Protection: whitelists, security groups, and VPC network isolation.

• Encryption: SSL encryption and disk encryption.

• Protection: whitelists, security groups, and VPC network isolation.

• Encryption: The connection must be encrypted separately.

• Protection: Whitelists and VPC network isolation involve high consulting costs.

• Encryption: You must implement connection encryption separately.

• Scalable resources with no upfront hardware investment.
• SQL Server Web Edition supported, providing a cost-effective licensing option.
• Free backup storage equal to half the purchased storage capacity. For more information, see Backup storage fees of an ApsaraDB RDS for SQL Server instance.
• Internet traffic included at no charge.

• Scalable resources, but SQL Server Web Edition is not supported.
• Backup storage and Internet traffic billed separately.

• High upfront hardware cost.
• SQL Server Web Edition is not supported.
• Independent backup infrastructure required.
• Internet traffic and domain names billed at high rates.

• RDS Basic Edition: failover completes in approximately 15 minutes.
• RDS High-availability Edition / RDS Cluster Edition: failover completes within 30 seconds using Alibaba Cloud's proprietary high-availability architecture.
• RDS Cluster Edition: read-only instances available for load balancing. For more information, see Overview of read-only ApsaraDB RDS for SQL Server instances.
• RDS Cluster Edition: read/write splitting routes traffic via a dedicated endpoint. For more information, see Overview of read/write splitting.

• Basic edition failover takes approximately 30 minutes.
• High-availability and load-balancing architectures require additional software or hardware.

• Standalone by default; server failure can mean hours to weeks of downtime.
• High-availability and load-balancing architectures require additional software or hardware.

• Automated data replication between primary and secondary instances, plus automated data and log backups.
• RDS Cluster Edition delivers an RPO of 0.

• High availability requires an architecture that you build and maintain.
• Achieving an RPO of 0 requires purchasing independent R&D services.

• Data reliability depends on individual disk integrity.
• Achieving an RPO of 0 requires purchasing independent R&D services.

• Automated backup and restore supports PITR, database-level restore, and streaming backups with minimal performance impact. For more information, see Enable automatic backups for an ApsaraDB RDS for SQL Server instance.
• Built-in monitoring and alerting covers all instance and database metrics at a few-seconds granularity. Alerts are delivered by text message, email, or DingTalk — with a free text message quota based on your purchase. For more information, see Manage an alert rule.
• Geo-disaster recovery is in development.

• Streaming backups and PITR must be purchased or configured separately.
• Monitoring requires a separate system configured in CloudMonitor.

• Streaming backups and PITR must be purchased or configured separately.
• An independent monitoring system must be purchased and configured.
• Geo-disaster recovery is difficult to set up and expensive.

• Instances running SQL Server 2008 R2 with Premium Local SSDs deliver high I/O performance. Instances running SQL Server 201x support compute-storage decoupling for improved hardware utilization.
• Instances with ESSDs outperform standard SSD-based instances. RDS optimizes ESSD parameters for SQL Server workloads, giving these instances an edge over self-managed databases on ECS.
• Read-only instances scale read throughput independently.
• DAS provides advanced query optimization and diagnostics. For more information, see Overview of DAS.

• Local disks reduce data reliability; cloud disks require manual architecture planning.
• Cluster deployments are complex and require costly DBA expertise and consultancy.

• Third-party server hardware refreshes lag behind cloud infrastructure improvements.
• Compute-storage separation requires significant capital investment in advanced storage media.
• Cluster deployments require costly DBA expertise and consultancy.

• IP address whitelists and VPC network isolation for network-level access control.
• Link encryption and disk encryption protect data in transit and at rest.
• Minor version updates track the latest Microsoft SQL Server releases.

• IP address whitelists, security groups, and VPCs available, but link encryption and disk encryption must be configured separately. BYOK rotation is complex and costly.
• SQL logs must be stored separately, making auditing difficult.

• IP address whitelists and VPCs available, but require high consultancy costs to configure.
• Link encryption and disk encryption must be configured separately. BYOK rotation is complex and costly.
• SQL logs must be stored separately, making auditing difficult.